
.mark{
    position: absolute;
    top: 0;
    left: 0;
    width: 700px;
    height: 3000px;
    border: 2px solid #ffc200;
}
.mark2{
    position: absolute;
    top: 0;
    left: 0;
    width: 700px;
    height: 3000px;
}
.richtext{
    position: absolute;
    top: 0;
    left: 0;
}
.btn{
    position: absolute;
    top: 0;
    right: 0;
    z-index: 999;
}
.node{
    position: absolute;
    right: 10px;
    top: 10px;
}
.node image{
    width: 100px;
    height: 100px;
}